Air conditioner



FIG. 1 is a perspective view of an air conditioner of the new design;

FIG. 2 is a front elevational view of the air conditioner of FIG. 1;

FIG. 3 is a rear side elevational view of the air conditioner of FIG. 1;

FIG. 4 is a left elevational view of the air conditioner of FIG. 1, the right side being symmetrical;

FIG. 5 is a top plan view of the air conditioner of FIG. 1; and,

FIG. 6 is a bottom plan view of the air conditioner of FIG. 1.

FIGS. 2-6 are shown on an enlarged scale. 

The ornamental design for an air conditioner, as shown and described. 